Reznor 43814 Blower Wheel Els PW 17895 What is the difference between

What is the difference between the red spring and other colors for the 243-12

While it fits the standard PopTop footprint

Circuit Safety Components: Includes a 300 degree fuse link and specialized ceramic insulators to restore factory safety specifications

this kit is engineered for the V-3000 series

Reznor 43814 Blower Wheel Els PW 17895 What is the difference betweenThe Reznor 43814 Blower Wheel is a critical direct replacement component engineered for specific Reznor unit heater configurations and power venter assemblies. Designed for precision balance, this centrifugal blower wheel ensures optimal static pressure and airflow delivery within the combustion or ventilation system. When diagnosing issues like excessive vibration or decreased heat exchanger efficiency, replacing a warped or fouled HVAC blower wheel